﻿#include "crc.h"
#include <iostream>
#include <fstream>
#include <vector>
#include <cstdint>
#include <iomanip>

const uint8_t CRC8_TABLE[256] = {
     0x00,0x91,0x61,0xF0,0xC2,0x53,0xA3,0x32,0xC7,0x56,0xA6,0x37,0x05,0x94,0x64,0xF5,
     0xCD,0x5C,0xAC,0x3D,0x0F,0x9E,0x6E,0xFF,0x0A,0x9B,0x6B,0xFA,0xC8,0x59,0xA9,0x38,
     0xD9,0x48,0xB8,0x29,0x1B,0x8A,0x7A,0xEB,0x1E,0x8F,0x7F,0xEE,0xDC,0x4D,0xBD,0x2C,
     0x14,0x85,0x75,0xE4,0xD6,0x47,0xB7,0x26,0xD3,0x42,0xB2,0x23,0x11,0x80,0x70,0xE1,
     0xF1,0x60,0x90,0x01,0x33,0xA2,0x52,0xC3,0x36,0xA7,0x57,0xC6,0xF4,0x65,0x95,0x04,
     0x3C,0xAD,0x5D,0xCC,0xFE,0x6F,0x9F,0x0E,0xFB,0x6A,0x9A,0x0B,0x39,0xA8,0x58,0xC9,
     0x28,0xB9,0x49,0xD8,0xEA,0x7B,0x8B,0x1A,0xEF,0x7E,0x8E,0x1F,0x2D,0xBC,0x4C,0xDD,
     0xE5,0x74,0x84,0x15,0x27,0xB6,0x46,0xD7,0x22,0xB3,0x43,0xD2,0xE0,0x71,0x81,0x10,
     0xA1,0x30,0xC0,0x51,0x63,0xF2,0x02,0x93,0x66,0xF7,0x07,0x96,0xA4,0x35,0xC5,0x54,
     0x6C,0xFD,0x0D,0x9C,0xAE,0x3F,0xCF,0x5E,0xAB,0x3A,0xCA,0x5B,0x69,0xF8,0x08,0x99,
     0x78,0xE9,0x19,0x88,0xBA,0x2B,0xDB,0x4A,0xBF,0x2E,0xDE,0x4F,0x7D,0xEC,0x1C,0x8D,
     0xB5,0x24,0xD4,0x45,0x77,0xE6,0x16,0x87,0x72,0xE3,0x13,0x82,0xB0,0x21,0xD1,0x40,
     0x50,0xC1,0x31,0xA0,0x92,0x03,0xF3,0x62,0x97,0x06,0xF6,0x67,0x55,0xC4,0x34,0xA5,
     0x9D,0x0C,0xFC,0x6D,0x5F,0xCE,0x3E,0xAF,0x5A,0xCB,0x3B,0xAA,0x98,0x09,0xF9,0x68,
     0x89,0x18,0xE8,0x79,0x4B,0xDA,0x2A,0xBB,0x4E,0xDF,0x2F,0xBE,0x8C,0x1D,0xED,0x7C,
     0x44,0xD5,0x25,0xB4,0x86,0x17,0xE7,0x76,0x83,0x12,0xE2,0x73,0x41,0xD0,0x20,0xB1
};

uint8_t Data_CRC8(uint8_t *arr_buff, uint16_t len)
{
    uint8_t crc = 0xFF;
    
    while(len--)
    {
        crc = CRC8_TABLE[crc ^ *arr_buff++];
    }
    
    return crc;
}

void writeCrcDataHexToFile(const uint8_t* crcData, size_t iDataLen, const std::string& filename)
{
    std::ofstream outFile(filename);
    if (!outFile) {
        std::cerr << "Failed to open file for writing: " << filename << "\n";
        return;
    }

    outFile << std::hex << std::setfill('0');

    size_t count = 0;
    for (size_t i = 0; i < iDataLen; ++i) {
        outFile << std::setw(2) << static_cast<int>(crcData[i]);
        count++;

        if (count < 63 && i != iDataLen - 1) {
            outFile << " ";
        }

        if (count == 63) { // 达到 63 个字节换行
            outFile << "\n";
            count = 0; // 重置计数
        }
    }

    outFile << std::dec << std::endl; // 恢复十进制
}

void writeCrcDataHexToFilePro(const std::vector<unsigned char>& crcData, const std::string& filename)
{
    std::ofstream outFile(filename);
    if (!outFile) {
        std::cerr << "Failed to open file for writing: " << filename << "\n";
        return;
    }

    outFile << std::hex << std::setfill('0');

    // 第一行：写 61 个字节（3 字节头 + 61 数据）
    outFile << std::setw(2) << static_cast<int>(0x00) << " ";
    outFile << std::setw(2) << static_cast<int>(0x20) << " ";
    outFile << std::setw(2) << static_cast<int>(0x34) << " ";
    for (size_t i = 0; i < 61 && i < crcData.size(); ++i) {
        outFile << std::setw(2) << static_cast<int>(crcData[i]);
        if (i != 60) outFile << " ";
    }
    outFile << "\n";

    // 后续行：每行 1 个编号 + 63 个数据
    size_t dataIndex = 61;
    unsigned char lineNumber = 0x01;

    while (dataIndex < crcData.size()) {
        // 写编号
        outFile << std::setw(2) << static_cast<int>(lineNumber) << " ";

        // 写 63 个数据
        for (size_t i = 0; i < 63 && dataIndex < crcData.size(); ++i, ++dataIndex) {
            outFile << std::setw(2) << static_cast<int>(crcData[dataIndex]);
            if (i != 62 && dataIndex < crcData.size()) {
                outFile << " ";
            }
        }
        outFile << "\n";
        ++lineNumber;
    }

    outFile << std::dec;
}